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Building Tips and technical articles. => Building techniques => Topic started by: James Mills on January 13, 2007, 12:15:15 AM
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I've got a 40size plane that creeping a little on weight. I'm doing a dope finish, planning on making the main color yellow, would another color (white) maybe cover better and save a little weight?
James
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In my experience, I have found the putting another color under yellow is a huge advantage. I used to paint full size cropdusters, they were bright yellow,(Airtractors) We always undercoated with a base of white. It really doesnt take a 100% coverage of the white to make a large gain. However, the white doesnt generally cover well if you have primer spots here and there so I would recomend a coat of light gray to even out the color, then a coat of white, just enough to make it lighter, then your yellow. just my opinion. I have even done some things like putting an orange base coat down, then the yellow, the yellow being semitransparent allows a cast of orange to come through the yellow. But in answer directly to your question, yes put down a light color that covers well.
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Yellow and red are very transparent and will show any variation that is under them. I usually use white under them and use the same white as part of the paint scheme. Some people will use silver or polar grey as a base, but remember that because these colors are transparent that any slightly darker base color will darken the yellow or white that is applied over it.
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On the other hand, white is easily the heaviest color so go easy as noted.